Pin-setting machine



April 20 1926.

J. W. BISHOP PIN SETTING MACHINE Filed June 29, 1925 4 Sheets-Sheet 1 April 20 1926. 1,581,378

J. W. BISHOP PIN SETTING MACHINE Filed June 29, 1925 4 Sheets-Sheet 2 :1- L IHHFHEI f g1 Id 11%.! Id H HdTM Id April 20, 1926.

J. W. BISHOP PIN SETTING MACHINE Filed June 29, 1925 A ril 20, 1926. 1,581,378

J. W. BISHOP PIN SETTING MACHINE Filed June 29, 1925 4 SheetsSheet 4 DRAIN SETTEI? FRAME A C CUMULATO K Patented Apr. %11926.

UNITEDFST'ATES' [PATENT OFFICE.

.rosnrn w. farmer, or musxneon, ICHIGAN, meson To run namsvrswrcir- BALKE-COLLENDER conrANY, or WILMIN TON, nmwm, A coarom'r'ron or DELAWARE.

PIN-SETTING" MACHINE. I I

Application filed June 28, 1825. Serial No. 40,260.

To all whom it may concern:

Be it known that I, J osnrn W. 'Brsnor, a citizen of the United States, residing at Muskegon' in the county of Muskegon and State of Michigan, have invented certain new and useful Improvements in Pin-Setting Machines, of which the following is a specification. 1

This invention relates to a novel andimproved pin setting machine of the hand operated type employed on bowling alleys. Machines of this type now in use are commonly provided with a handle for. lowering them to position adjacent the alley bed, in which position the pins carried by the setter frame of the machine are deposited upon the bed, and then upon releasing the handle the setter frame is raised to its uppermost position by means of a counterweight connected to the frame. Other means such as springs, and pneumatic means controlled by valves, have been used also. It is the object of my invention to provide a pin settin 'I'nachine of the hand operated type inwhic the raising of the setter frame is achieved without the use of such counterweights, springs or valves. I

Morespecifically, the object of my invention is tov provide a machine of the above type in which the lowering of the setter frame is done by hand as at present, but in which the raising of the frame is achieved by fluid pressure means and more particularly by hydraulic means.

Referring to the drawings in which I have shown a selected embodiment of my invention,

Fig. 1 is a rear elevation of a machine embodying my invention. F Fig. 2 is a section on the line 22 of ig. 1. 4 l

FFig. 3 is a sectiomon the line 3-3 of ig. 1. v

Fig. 4 isan elevation of the part of the machine shown in Fig. 3, but showing the setter frame in its lowered position.

Fig. 5 is a section on the lines 5-5 of Figs. 1 and 2.

Fig. 6 is a lan view of the machine and Fig. 7 is a iagram illustrating the operation of the machine.

Referring now to the drawings in detail I have'shown at 1 an alley bed suplporting at its sides posts 2 and braces 3 for t e posts. Supported on the posts are a pair of cross bars 4 and 5 between which extend brackets This setter frame may be of any desired form, but I have shown it herein as similarto the form described and claimed in my 00- pending application Serial No. 16,332 filed March 18, 1925. The guide rods 8 are provided on one face thereof with teeth forming a rack 10 with which mesh inions 11 mounted on a transverse shaft 1 this arrangement forming an ualizer to insure auniform movement of t e guide rods, as set forth in my aforesaid co-pending applicat1on The setter frame is adapted to be lowered by means of a handle 13 secured to arms 14 pivoted to cars 15 upon the support. Pivoted to the arms .14 are links 16 pivotally connected at their other ends to the setter frame. Operation of the handle. from the osition shown in Fig. 3 to that shown in ig. 4 will obviously result in lowerin the setter frame, this lowering movement eing of sufiicient extent to bring the frame in the proper position in relation to the alley bed 1, as shown in Fig. 4.

In order to raise the frame again to the. position shown in Fig.3 I provide on the support 6 a plurality of cylinders 17 within which reciprocate the pistons 18 mounted upon piston rods 19 secured to the setter frame. The cvlinders 17 normally contain a suitable fluid, which for the purposes of illustration I have shown as water, although any other suitable fluid may be employed. This fluid is supplied from a pipe 20,

through whichthe flow of the fluid is coning a weight 25 slidablymounted thereon and snugly fitting the walls thereof. It will therefore be apparent that, as the setter frame is 1owered,'the fluid in the cylinders will flow through the pi' es 23 and 24 back to the accumulator 22 an lift the weight 25,

the pipe 20 being normally closed bythe valve will be apparent that downward movement of the setter frame to spot the pins is caused by actuation of the handle 13. When the handle is lowered to the position shown in Fig. 4, the arms 14 and links 16 form a toggle which enables the operator to hold the frame down in its lowermost position with a minimum effort. The weight 25 is lifted by the fluid during this downward movement, but as soon as the handle is re leased the weight descends in the receptacle in which it is mounted, thus causing the fluid to force the pistons upwardly and raise the setter frame.

From the above it will be apparent that I have rovided a pin setting machine of simple 0 aracter and which will avoid the use of counterweights disposed in prominent positions, springs or valves. It will be noted that there are no valves between the cylinders and the accumulator and that none are necessary. The only valve provided is the valve 21 which is not normally used, its only function being to replenish the supply of fluid.

I am aware that changes in the form, construction and arrangement of parts may be made without departing from the spirit and without sacrificing the advantages of the invention and I reserve the right to make all such changes as fairly fall within the scope of the following claims:

I claim: I

1. A pin setting machine comprising a setter frame, means to lower said frame by hand, and fluid pressure means to raise said frame.

2. A pin setting machine comprising a setter frame, a handle connected to said frame to lower the same, and fluid pressure means to raise said frame and operating upon release of said handle. 3. A pin setting machine comprising a setter frame, a handle to lowersaid frame a fluid acted on by the lowering of said frame, and reacting to lift said frame upon release of said handle.

4. A pin setting machine comprising a setter frame, a handle to lower said frame, a fluid acted on by the lowerin of said frame, an element moved by said uid when acted upon by the lowering of said frame and reacting upon said fluid to raise said frame upon release of said handle.

5. A pin setting machine comprising a setter frame, a handle to lower said frame, a cylinder containing fluid, a piston in said cyhnder and moving against said fluid in one direction upon lowering of said frame, and means causing said fluid to move said piston in the opposite direction to raise said frame upon release of said handle.

6. A pin setting machine comprising a support, a setter frame mounted for vertical movement on said support, a cylinder on said support and containing afluid, an accumulator connected to said cylinder, a. piston in said cylinder and connected to said frame, said fluid acting on said piston to hold said frame in raised position, and means to lower said frame.

7. A pin setting machine comprisin a support, a setter frame mounted for vertical movement on said support, a cylinder on said support and containin a fluid, an accumulator connected to sai cylinder by a pipe and comprising a receptacle having a weight vertically movable therein, a piston in said cylinder and connected to said frame, said fluid normally holding said frame in raised position by acting on said piston, and means to lower said frame, said lowering of said frame forcing the fluid in said cylinder into said accumulator and raising said weight, said weight reacting to cause said fluid to act on said piston and raise said frame upon release of said lowering means.

8. A pin setting machine comprising a support, a. setter frame mounted on said support for vertical movement, a handle having an arm pivoted to said support, a link pivoted to said armand to said frame, said arm and said link straightening out to form a toggle as the frame is lowered by actuation of said handle.

JOSEPH W. BISHOP. 

